Portable forge



(No Model.)

2 Sheets-Sheet 1, A. E. DAIN.

PORTABLE FORGE.

Patented. Sept. 24, 1889.

Fig.1,

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(No Model.) 2 Sheets-Sheet 2.

A. E. DAIN.

PORTABLE FORGE. No. 411.760. Patented Sept. 24, 1889.

UNITED STATES PATENT OFFICE.

ALBERT E. DAIN, OF PITTSBURG, PENNSYLVANIA.

PORTABLE FORGE.

SPECIFICATION forming part of Letters Patent No. 411,760, datedSeptember 24, 1889. Application filed June 8, 1889. Serial No. 313,622.(No model.)

To all whom it may concern.-

Be it known that I, ALBERT E. DAIN, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inPortable Forges; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specification, in which- Figure 1 indicates a sectional elevationof my improved portable forge. Fig. 2 is a plan of the same. Fig. 3 is aplan of the valves. Fig. 4: is a side elevation, partly in section, ofthe same; Fig. 5, a sectional elevation of the tuyere. Fig. 6 is a sideelevation of the device which connects and operates alternately eithersection of the bellows. Fig. 7 is a detail of the bolt-head-coveringdevice.

Like letters indicate like parts wherever they occur.

The object of my invention is to produce a portable bellows-forge inwhich the draft upon the fuel is constant, thereby obviating thedisadvantages incident to those at present in use, in which the draft isintermittent. I believe I have accomplished this object by the deviceherein described.

In the drawings, A is the casing of a portable forge, formed of heavysheet-iron or other suitable material, to the upper part of which isbolted or otherwise suitably secured the firehearth B, which is formed,preferably, of one piece. 0 is a bellows suitably secured in the lowerportion of the interior of said casing, and is formed of two separatesections firmly connected together, as shown in the drawings, therebyforming a double-actin g bellows the upper section or compartment ofwhich is adapted to receive air while the lower section thereof isdischarging air, and vice versa, whereby a constant draft is had uponthe fuel upon the fire-hearth of the forge. Upon the top of the uppersection is suitably secured by bolts or otherwise an iron strap or roda, to the outer end of which is attached by a hinged joint the shaft D,the lower end of which is similarly attached to a flat bar or strap b,similarly secured upon the bottom of the lower section. Attached to orforming part of said shaft D is a short horizontal arm 0, which projectsthrough an opening at the rear lower part of the casing. To the outerend of said arm is secured the lower end of the long vertical rod orshaft E, the upper end of said shaft being attached to a lever F,whichis pivoted near its outer end upon the brace or bracket d.

e e are valves for the admission of air into either section ofthebellows, respectively 5 and G G are valves suitably attached to theforward part or nozzles of either section, respectively, either of whichis adapted to close antomatically the instant the other is opened by theexpulsion of the air from the compartment towhich it is attached intothe chamber or box H. Attached to the upper and inner end of saidchamber is a pipe I, which projects through an opening in a screen J,suitably secured in the interior of the casing between the bellows andthe fire-hearth of the forge. To the upper end of said pipe is securedan elbow 7o, which is threaded upon its lower inside surface for thatpurpose, and is also provided with a thread upon its upper insidesurface, into which is screwed the tuyere L of the forge, as shown inFigs. 1 and 5.

Z is a cap adapted to close the hole in the side of the casing, throughwhich the valves may be repaired, if necessary.

It is obvious that instead of two connected bellows, as shown in thedrawings, the same maybe formed in one with two separate com partlnentsby substituting a thick divisional partition for the bottom and top ofthe bellows, respectively, as shown, and by cutting out a check in therear of said partition for the valve to admit air into the uppercompartment. It is also obvious that the bellows may be advantageouslyused in forges other than portable ones.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. A forge-bellows formed of two separate compartments, either of whichis adapted to be expanded when the other is contracted, whereby aconstant draft is had, substantially as and for the purpose herein setforth.

2. In a portable forge provided with a suit- 5 able fire-hearth, thecombination of the bellows, substantially as described, and means forcontracting and expanding either section alternately, whereby a constantdraft is had, the valves attached to the nozzle of either sec- 10 tion,respectively, and the air-chamber connected by a pipe or tube with thetuyere, substantially as and for the purpose setforth.

In testimony that I claim the foregoing I hereunto affix my signaturethis 1st day of June, A. D. 1889.

ALBERT E. DAIN. [n s.]

In presence of O. S. SIMPSON, C. 0. LEE.

